Silex SX-550-0700 E1038 Manual De Usuario
Los códigos de productos
E1038
Table 10 RS-232 Cable Pinout Description
Pin
Description
1
DCD (Data Carrier Detect) Input
6
DSR (Data Set Ready) Input
2
RxD (Receive Data) Input
3
TxD (Transmit Data) Output
4
DTR (Data Terminal Ready) Output
7
RTS (Request To Send) Output
8
CTS (Clear To Send) Input
5
Ground
Additional OEM Interface Signals
The output LED signals ORLED-, GRLED- and YELED- represent the state of the LEDs on the module.
Logic 0 indicates the LED is on, and Logic 1 indicates the LED is off. Buffers are recommended if LEDs
are to be driven on the end-user side.
Logic 0 indicates the LED is on, and Logic 1 indicates the LED is off. Buffers are recommended if LEDs
are to be driven on the end-user side.
The SWITCH signal is connected to a momentary pushbutton switch (Test Button) on the Evaluation
Daughtercard and is in the normally open position. Depressing the switch causes a short to ground. A
4.7 K-ohm pull-up resistor to +3.3 VDC is connected. The module’s processor monitors this signal. The
end-user can drive or use open-collector to this signal to either logic level or can monitor this signal as an
input. The Test Button is normally used either to send configuration information to a printer (button
momentarily pressed) or to reset the SX-550 to its default configuration (button held down for more than 5
seconds).
Daughtercard and is in the normally open position. Depressing the switch causes a short to ground. A
4.7 K-ohm pull-up resistor to +3.3 VDC is connected. The module’s processor monitors this signal. The
end-user can drive or use open-collector to this signal to either logic level or can monitor this signal as an
input. The Test Button is normally used either to send configuration information to a printer (button
momentarily pressed) or to reset the SX-550 to its default configuration (button held down for more than 5
seconds).
Part Number 40183-101
Silex SX-550 Developer's Guide
Page 16